20mm Dielectric Half-Mirror Cube, 390-410nm AR Coating
CSMH-20-405
Dielectric cube half mirrors consist of two right angle prisms. One of them is coated with dielectric multi-layer partial reflection coating on the hypotenuse face.
◦Half mirror divides input beam into reflectance and transmittance at a 1:1 ratio. A beamsplitter with R:T (1:1 ratio) is called “Half Mirror”.
◦Four surfaces of the cube are coated with multi-layer anti-reflection coatings.
◦The loss of input beam is minimized as there is no absorption from dielectric coating. However the reflection to transmission ratio of these dielectric cube half mirrors vary depending on wavelength, polarization and the incident angle of input beam.
◦Four surfaces of the cube are coated with multi-layer anti-reflection coatings.
◦The loss of input beam is minimized as there is no absorption from dielectric coating. However the reflection to transmission ratio of these dielectric cube half mirrors vary depending on wavelength, polarization and the incident angle of input beam.
| Name | 20mm Dielectric Half-Mirror Cube, 390-410nm AR Coating |
|---|---|
| Weight | 0.0210kgs |
| Standard Coatings Available | No |
| Guide |
|
| Remark | - |
| Attention |
|
| A=B=C | 20mm |
| Design wavelength | 405nm |
| Image Label | Dielectric Cube Half Mirror 7mm 400 - 700nm |
| Material | BK7 |
| Surface flatness of substrate | λ/4 |
| Beam Deviation | ＜5′ |
| Coating |
Hypotenuse surface ; Dielectric multilayer coating Four surfaces ; Multilayer antireflection coating |
| Incident angle | 0° |
| Divergence ratio <br> (reflectance : transmittance) | 1 : 1 |
| Polarization of the incident | Unpolarized light or 45-degrees Linear polarization or Circular polarization |
| Laser Damage Threshold | 0.3J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz) |
| Surface Quality <br> (Scratch-Dig) | 20-10 |
| Wavelength range | 390 - 410nm |
| A＝B＝C | 20mm |
| Transmittance (Average P and S) | 50±3% (average with respect to wavelength.) |
In stock
SKU
CSMH-20-405
£199.80
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Dielectric cube half mirrors consist of two right angle prisms. One of them is coated with dielectric multi-layer partial reflection coating on the hypotenuse face.
